20780091 is an odd 8-digits composite number following 20780090
and preceding 20780092 . In scientific notation, it is written as 2.0780091 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13123944 positive integers (up to 20780091) that are relatively prime to 20780091.
20780091 has 16 divisors, whose sum is 32406400
The reverse of 20780091 is 19008702
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million seven hundred eighty thousand ninety-one
Scientific notation
2.0780091 × 10^7
Engineering notation
2.0780091 × 10^6
Prime Factorization
3 × 9 × 19 × 40507
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20780091
Product of the distinct prime numbers
The prime factorization of 20780091 is 3 × 9 × 19 × 40507.
Since it has a total of 4 prime factors.
2 , 9 , 85 , 58 , 296 , 146 , 8565 , 6738 , 33160 , 70062 , 273686 , 64514 , 5398786 , 1254653 , 4748940 , 41260031 , 459552842 , 355852645 , 8187806150 , 9697917472
n×2
41560182
n×3
62340273
n×4
83120364
n×5
103900455
n÷2
10390045.5
n÷3
6926697
n÷3
5195022.75
n÷5
4156018.2
n2
431812181968281
n3
8.9730964362094E+21
n4
1.8646176049621E+29
n5
3.8746923511314E+36
2 √n
4558.5185093405
3 √n
274.92600102625
4 √n
67.516801681807
5 √n
29.075653792528
1 , 3 , 9 , 19 , 27 , 57 , 171 , 513 , 40507 , 121521 , 364563 , 769633 , 1093689 , 2308899 , 6926697 , 20780091
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20780090
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20780091 can be divided by 16 positive divisors.
The sum of these divisors (counting 20780091) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010001010000111011
3
Ternary
1110002201221000
4
Quaternary
1033101100323
5
Quinary
20304430331
6
Senary
2021220043
8
Octal
117212073
10
Decimal
20780091
12
Duodecimal
6b61623
16
Hexadecimal
13d143b
20
Vigesimal
69ha4b
36
Base36
cde0r
md5
8e51f0d10dd2433184816920108c16fd
sha1
a9ae674161f1d374018e614da6d545d395ea5847
sha256
0e5322e89525cfb7a96f3794732c0541d1663a3b5d6b4b0237115322d6abd5e5
sha512
5c39fb5f67f2ebde449723dd9d1945666addf37806fa1802107c02c45884155972837b9752b04fc451e35a62d3339f6b474ad61e01acafffc6cb7774b8ec810f
ripemd-160
52a13670badb3c30f22203ce0501dcc3bfa15653
Diameter
41560182
Circumference
130565162.45305
Area
1.3565779786021E+15
Volume
3.7586418458598E+22
Surface area
5.4263119144085E+15
Circumference
130565162.45305
Perimeter
83120364
Area
431812181968281
Diagonal
29387486.519547
Surface area
2590873091809686
Volume
8.9730964362094E+21
Space diagonal
35992173.397905
Perimeter
62340273
Area
1.8698015962406E+14
Altitude
17996086.698952
Surface area
1.8698015962406E+14
Volume
1.0574895563808E+21
Height
9795828.839849